Wheel-rim.



N0. 808,405. PATENTBD DEC. 26, 1905n E. SCHMITZ. WHEEL RIM.

APPLICATION FILED JUNE Z6 WH0/Ligia? fl /gl M #e :Li

20:; i V; @s H@ A EDUARD SCHMITZ, OF COLOGNE, GERMANY.

WHEEL-RIM.

Specification of Letters Patent.

Patented Dec. 26, 1905.

Application filed Tulle 26, 1905. Serial No. 266,952.

To @ZZ w/wm/ it may concern:

Be it known that I, EDUARD SCHMITZ, a citizen of the Empire of Germany,residing at Cologne, in the Province of the Rhine and Kingdom ofPrussia, Germany, have invented certain new and useful Improvements inIVheel-Rims for Road-Vehicles, of which the following is aspecification.

This invention relates to rims for wheels with pneumatic tires anddetachable tire-holders the construction of which differs from that ofknown rims in that the fitting of the holders can be readily effectednotwithstanding contraction or warping of the felly.

My invention is illustrated in the accompanying drawings, in which-Figure l represents in elevation part of a rim which embodies myinvention. Fig.2illustrates same without the tire-holders. Figs. 3, 4,and 5 are sections on lines A B, C D, and E F of Fig. l; and Fig. 6shows a tire-holder.

Similar-letters of reference denote like parts in all the figures.

The construction of my novel wheel-rim is as follows: On the hoop t ofthe wheel oblongv raised portions I) are arranged, which are eitherformed in one piece with the hoop or are immovably Xed thereon by meansof rivets c or in any other suitable manner. f The narrow edges of theraised portions taper downward, so that by means of the opposite lyingedges of each two raised portions dovetail guides are formed at theextremities of the gaps d, between the raised portions The hoop t alsoacts as a support for the tire-holders, which consist of curved platese, adapted to lie on the hoop a and formed with curved edges f, theplates forming a channel for the tire when laid side by side.

The rim-plates e are formed with perforated lateral projections 7L, withrecesses g between them, the length of such recesses being equal to thedistance between the farther extremities of each two raised portions 5,so that the projections /t on opposite plates may be so adjusted in thegaps d that the projections t ofthe one tire-holder alternate with thoseof the other in the order of succession. These projections are beveledat the edges to take into the dovetailed sides of the gaps d. Theopenings z' in the parts /t are furnished with screwthreads,and thetire-holders are fixed by means of screw-bolts 7c, which pass throughborings Z in the hoop a, and thereby at the same time secure this to thefelly m.

Havingthus described myinvention, Iclaim as new and desire to secure byLetters Patent- A rim for wheels with detachable pneumatictire holderscomprising a hoop fixed to the felly and provided with oblong raisedportions forming gaps or spaces between them with dovetailedgeaadetachable tire-holder formed of plates with curved edges arrangedto be secured in position side by side to form a channel for receivingthe tire, lateral projections on the channel-plates arranged to lit intoalternate gaps between the raised portions of the hoop, and boltsscrewing from the inside of the rim through the felly, hoop andchannel-plates and securing the whole together.

In testimony whereof I have hereunto affixed my signature in thepresence of two witnesses.

EDUARD SCHMITZ.

In presence of- WILLIAM THUEPPERS, Jon. SnLwELZ.

